Technical data

Field Replaceable Unit Removal and Replacement

Backplane SEEPROM Assemblies

Chapter 1

Removing a 14-Slot Shelf SEEPROM Assembly

WARNING Electrical Shock Hazard to Personnel. Shut down all normal operation of the 14-Slot Shelf and

disable/disconnect all external power supply power domain circuit breakers in the OFF (O)

position before completing any of the following steps. Failure to disable/disconnect all power

supplied to the 14-Slot Shelf at the power source may result in personal injury.

CAUTION Electrostatic Discharge Hazard. Observe all ESD safety precautions while completing this

procedure. Failure to follow ESD safety precautions could result in damage to the 14-Slot Shelf

and equipment.

To remove a 14-Slot Shelf SEEPROM assembly, complete the following steps:

Step 1. Remove both PEMs in order to provide maximum physical access to the defective SEEPROM.

Step 2. Carefully remove the Backplane SEEPROM Assembly fixing screw (#4, Figure 1-9) using an

applicable Torx head screw driver. Note that the Torx drive mounting screw is not captive, and can

be easily dropped inside the chassis.

Step 3. Push the SEEPROM Assembly board in the direction of the arrow in Figure 1-9 to release the

locking mechanism in the mounting slot, and remove the SEERPOM Assembly from the backplane.

Step 4. Place the SEEPROM Assembly containing the defective SEEPROM into an anti-static bag.

Replacing a 14-Slot Self SEEPROM Assembly

WARNING Electrical Shock Hazard to Personnel. Shut down all normal operation of the 14-Slot Shelf and

disable/disconnect all external power supply power domain circuit breakers in the OFF (O)

position before completing any of the following steps. Failure to disable/disconnect all power

supplied to the 14-Slot Shelf at the power source may result in personal injury.

CAUTION Electrostatic Discharge Hazard. Observe all ESD safety precautions while completing this

procedure. Failure to follow ESD safety precautions could result in damage to the 14-Slot Shelf

and equipment.

To replace a Backplane SEEPROM Assembly, complete the following steps:

Step 1. Ensure that the PEMs have been removed, and that the required SEEPROM Assembly mounting

slot is open and unobstructed (see Figure 1-9).

Step 2. Hold the replacement SEEPROM Assembly vertically by its edges so that the fixing screw hole is at

the top (in the same orientation as shown in Figure 1-9). Slide the SEEPROM Assembly into its

backplane mounting slot, as shown in Figure 1-9, so that the fixing screw hole is aligned with the

fixing screw threads on the backplane.

Step 3. Ensure that the new SEEPROM Assembly is locked in place in its mounting slot, then insert and

tighten the Torx drive mounting screw (Figure 1-9).

Step 4. Reinstall the PEMs.